JPH037367B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an electric cooker equipped with multiple heat sources.

Conventional technology Conventional electric cookers of this type include, for example, the
As shown in Publication No. 3395, it had a structure as shown in Figure 5.

That is, a lower heater 2 is embedded and attached to the lower part of a frying pan-shaped container 1, an upper heater 4 is provided in a lid 3 covering the container 1, and a temperature sensing probe 5 and a pair of power terminals 6 are provided. By attaching the constant temperature control device 7 to the recess 8 of the container 1, cooking is performed in a frying pan, and by attaching the constant temperature control device 7 to the upper heater 4 of the lid 3, cooking is performed in an oven. Ta.

Problems to be Solved by the Invention However, with such a structure, when cooking in the oven, only the upper heater 4 heats the food, so uniform browning cannot be obtained. If the upper heater 4 is placed on the side of the food, only the top side of the food will be cooked and the bottom part will be uncooked, and if the upper heater 4 is placed on the side of the food, the center of the food will not be cooked and the food will be cooked. Got tired,
All I could get was poorly made ones. Also,
Since the temperature sensor is removable and removable,
There is a risk that the temperature sensing probe 5 may be accidentally deformed or damaged, making it impossible to obtain accurate temperature sensing, resulting in failure to obtain good cooking results, and furthermore, the temperature rising abnormally. It was hot.

In addition, conventionally well-known electric ovens use upper and lower heaters to enable cooking in the oven, and a temperature sensor is also installed inside, making them highly safe. could not be used at all, and therefore its use was extremely limited.

In view of the current situation, the present invention has been developed to enable a wide range of cooking from oven cooking to pot cooking, and when cooking in the oven, it is possible to cook well-done dishes by uniform heating at a constant temperature. The purpose of the present invention is to provide a highly safe cooking device that allows for reliable temperature control and delicious cooking that matches the cooking conditions.

Means for Solving the Problems In order to solve the above problems, the present invention provides a container made of a heat-conducting member in the shape of a pot, a temperature controller installed at the bottom of the container, and an upper heater and a lower heater energized at least simultaneously. This is possible.

Function According to the above configuration, when cooking in the oven, the upper heater and the lower heater are energized at the same time, and the temperature is maintained at a constant temperature by the temperature controller installed at the bottom of the container, resulting in a well-balanced and There is less uneven cooking and you can cook without mistakes. Also, when cooking in a pot, only the lower heater is energized, but
In this case, since the temperature controller senses the temperature of the pot with high sensitivity, reliable temperature control can be performed, and as a result, even foods that may cause a fire, such as cooking with oil, can be safely cooked.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In Figures 1 to 3, 9 is a pot-shaped container with an opening at the top, and this container 9 is made of a material with good thermal conductivity such as aluminum, and has a lower heater A ₁₀ at the bottom. and bottom heater
B ₁₁ is cast and installed at the same time. Reference numeral 12 denotes a temperature controller, which is disposed at the bottom of the container 9 and is adapted to variably control the temperature of the container 9. 13 is an outer peripheral groove portion 14 of the container 9
This cooking device main body 13 is equipped with a handle 15 for carrying, and a frame 16 for supplying power is provided below one of the handles 15. An operation panel 17 is provided in a portion where the pair of handles 15 are not provided. This operation panel 17 includes a timer 18 for about 60 minutes and a changeover switch 1 for switching the heater.
9 is attached via a switch attachment plate 20. 21 is this timer 18, changeover switch 19
This is the knob. Reference numeral 22 denotes a lever provided to change the operating temperature of the temperature controller 12. One end of this lever 22 is rotatably supported by a stepped screw 24 on a heat shield plate 23 attached below the container 9. The other end of the lever 22 is provided so that it can be operated from the outside by penetrating the lower hole 25 of the operation panel 17, and the temperature variable pin 26 of the temperature controller 12 is rotated by the middle part of this lever 22. It's becoming like that. Reference numeral 27 denotes a temperature fuse, one end of which is attached to the terminal of the temperature controller 12, and the other end attached to the terminal pottery 28. Reference numeral 29 denotes a back plate that covers the lower opening of the cooker main body 13, and this back plate 29 is fixed to the heat shield plate 23 by a mounting bracket 30, and the upper open end of the cooker main body 13 is connected to the container. It is firmly fixed by pressing against the outer circumferential groove 14 of 9. 3
1 is a leg, and this leg 31 is attached to the back plate 29 with rivets or the like.

Reference numeral 32 denotes a lid configured to cover the upper opening of the container 9 and to be able to be installed.The outermost diameter of the lid 32 is slightly smaller than the flange portion 33 of the container 9 so that it can be appropriately positioned. .

A glass window 34 made of tempered glass is provided at the center of the top surface of the lid 32, and one side of the lid 32 is pressed by a support stand 36 attached to cover the air hole 35 of this lid 32, and the other side is This lid 32 is pressed and fixed by a part of the lid handle 37. 3
Reference numeral 8 denotes an upper heater disposed above the inside of the lid 32. A terminal portion 39 of the upper heater 38 penetrates through a heater pottery 40 made of porcelain, and is connected to the heater connector 4.
1 is fixed with screws. Reference numeral 42 denotes a heater support plate attached to this heater pottery 40. This heater support plate 42 fixes the upper heater 38 and has a claw portion 43 at its upper end. Reference numeral 44 denotes a reflecting plate, and this reflecting plate 44 is provided with a support portion 45 for supporting the upper heater 38, and a supporting pottery 46 made of porcelain with excellent insulation is attached to the peripheral portion. Further, this reflecting plate 44 is removably fitted into the claw portion 43 of the heater support plate 42, and a supporting metal fitting 47 is provided near the air hole 35 of the lid 32.
By inserting the supporting pottery 46 into the heater pottery 40 and pressing a rotatably provided clip on the heater pottery 40 toward the outer periphery of the lid 32, the upper heater 38 and the reflector plate 44 can be detachably attached to the lid 32. There is.

49 is a connecting cord; one end of this connecting cord 49 is inserted into the heater connector 41 of the upper heater 38 with a commonly used appliance plug 50;
The other end is inserted into the peg frame 16 using a highly safe magnetic plug 51. Reference numeral 52 denotes a power cord, and this power cord 52 is detachably attached to the frame 16 with an instrument plug 53. 5
4 is a stainless steel rack used for oven cooking or steam cooking;
4 consists of a cooking table part 55 and a support part 56, the cooking table part 55 is located near the bottom of the container 9, and the support part 56 is placed above it on the upper end of the container 9. 57 is a handle of the rack 54. 5
8 is a steam lid used for steam cooking etc.
The steam lid 58 is made of a material with excellent corrosion resistance such as stainless steel, has a steam lid handle 59 in the center, and is placed on the container 9.

Next, the electric circuit of this embodiment will be explained.
In Fig. 4, the timer 18 is connected to the power terminal _L1 .
are connected, one end of the lower heater A ₁₀ is connected in series, and the movable contact 19a of the changeover switch 19 is connected in series. Further, one end of the lower heater B ₁₁ is connected to the fixed contact 19c, and the other end is connected to the temperature controller 12 together with the other end of the lower heater A ₁₀ . On the other hand, the fixed contact 19b is connected to one end of the upper heater 38 via the movable contact 19d. The other end of the upper heater 38 is connected to a movable contact 19f via a movable contact 19e. Fixed contact 19h is the lower heater
A ₁₀ and the other end of the lower heater B ₁₁ are connected to one end of a temperature controller 12, and the other end of this temperature controller 12 is connected to a power terminal via a temperature fuse 27.
Connected to L ₂ . Further, the fixed contact 19g bypasses the temperature controller 12 and the temperature fuse 27 and is directly connected to the power supply terminal _L2 . Reference numeral 60 is an energization indicator lamp that indicates the energization state.

Next, the operation of the configuration of the above embodiment will be explained.

When cooking cakes, roast chicken, etc. in the oven, place the lid 32 with the upper heater 38 attached on the container 9, and connect the connection cord 49 to the appliance plug 5.
3 into the heater connector 41, and the magnetic plug 51 into the plug frame 16. When the changeover switch 19 is set to the oven position, the movable contact 19a is connected to the fixed contact 19b, and the movable contact 19d is closed. Further, the movable contact 19e is also closed, and the movable contact 19f is connected to the fixed contact 19h. Next, when the lever 22 is set to the preset position, the temperature controller 1
The operating temperature of No. 2 is set to a necessary temperature so as to correspond to the desired temperature.

When the timer 18 is set to the required time, the power is turned on and the lower heater A ₁₀ and upper heater 38
is energized at the same time, heating the inside of the refrigerator. At this time, the temperature controller 12 senses the temperature of the container 9, but since the container 9 is pot-shaped and the entire bottom surface is integrally shaped,
It has good heat sensitivity and has a very high correlation with the internal temperature, allowing you to reliably set the desired temperature. After preheating for about 10 minutes, open the lid 32, place the food (for example, a cake) on the rack 54, and press the rack handle 5.
7, place the rack support 56 on the upper end of the container 9, and cover the lid 32 again. Furthermore, when the timer 18 is set to a predetermined time, uniform heating is applied by the lower heater A ₁₀ and the upper heater 38 until the food is cooked, and the temperature is maintained at the optimum temperature by the temperature controller 12. During cooking, the cooking status can be checked through the glass window 34 on the top surface of the lid 32. When the predetermined time has elapsed, the timer 18 automatically turns off the power, so the lid 32 is opened and the food is taken out. Cleaning up is very easy, as all you have to do is wash the pot-shaped container 9 with water.

When cooking in a pot next time, the lid 32 is removed and the connection cord 52 is not connected. When the changeover switch 19 is set to the wok position, the movable contact 19a is connected to the fixed contact 19c, the movable contact 19d is opened, and the movable contact 19e is also opened. As a result, the upper heater 38 is turned OFF, and the lower heater A ₁₀ and the lower heater B ₁₁ can be energized at the same time. When cooking tempura or the like using oil, the lever 22 is set in advance to a predetermined position to obtain the optimum oil temperature. timer 1
8 is set to ON continuously or for a predetermined time, the lower heater A ₁₀ and the lower heater B ₁₁ are energized at the same time to strongly heat the container 9, and when the predetermined temperature is reached, the temperature controller 12 is activated. Maintain a constant temperature. At this time, since the temperature controller 12 directly senses the temperature of the container 9, it has good sensitivity, and therefore almost no malfunction occurs. Also, when cooking with steam, use Ratsuku 54, which is used in oven cooking.
You can easily cook by setting the container 9 in the same way, placing the food to be cooked, filling the container 9 with an appropriate amount of water, placing the steam lid 58 on the container 9, and heating it with electricity. The temperature controller 12 provides reliable protection.

In the above embodiment, the lower heaters 10 and 11 were installed by being cast into the container 9, and the temperature controller 12 was also installed directly at the bottom of the container 9, but the present invention is not limited to this. The container 9 may be made detachable, and may be modified as appropriate without departing from the spirit of the invention.

Effects of the Invention As described above, according to the present invention, the container is formed into a pot shape using a heat conductive member, a lower heater is embedded, a temperature controller is fixed to the back surface of the bottom of the container, and an upper heater and a lower heater are installed. Because it is configured to allow at least simultaneous energization, a wide range of cooking such as oven cooking, fried dishes, water-cooked dishes, steam dishes, etc. can be done with one machine.In addition, when cooking in the oven, the upper and lower heaters heat evenly, and the bottom of the container The temperature controller installed in the oven ensures that the food is cooked at a constant temperature, resulting in excellent cooking under optimal cooking conditions with no uneven cooking. In addition, when cooking in a pot using a container, the temperature of the container is directly sensed, so the thermal response is extremely good, which improves the safety of cooking with oil and prevents abnormalities during dry baking. This prevents a significant temperature rise. In addition, oven cooking,
Alternatively, since hot pot cooking is controlled with one temperature controller, it is possible to reduce costs and improve reliability.

Furthermore, since the temperature controller itself is not inserted or removed during use, there is no risk of damage or deformation, and therefore safety can be improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing the electric cooking device according to an embodiment of the present invention when cooking in an oven, FIG. 2 is a perspective view of the electric cooking device, and FIG. 3 is a diagram showing the electric cooking device during steam cooking. 4 is a circuit diagram of the electric cooking device, and FIG. 5 is a longitudinal sectional view showing the conventional electric cooking device. 9... Container, 10, 11... Lower heater, 12
...Temperature controller, 32...Lid, 38...Top heater.

Claims (1)

[Claims] 1 comprising a container with an opening at the top, a lid that covers the upper opening of the container, a lower heater provided at the bottom of the container, and an upper heater provided inside and above the lid, An electric cooker, wherein the container is formed into a pot shape using a heat conductive member, the lower heater is embedded, a temperature controller is fixed to the bottom back surface of the container, and the upper heater and the lower heater are configured to be energized at least simultaneously. .